Mobilize for royal rain to reduce PM2.5 in the northern region and Bangkok and surrounding areas.

Bangkok, "Deputy Minister Chaiya" orders the Royal Rainmaking Department Continuously mobilize for royal rain Use the inverse atmospheric temperature reduction technique to help reduce dust density. Cloud farming techniques to absorb and release dust. Relieve the accumulation of PM 2.5 dust in the northern region and Bangkok. - Perimeter Mr. Supit Phithaktham, Director-General of the Department of Royal Rainmaking and Agricultural Aviation, revealed that from the situation of the problem of small dust particles PM2.5 that still affect the northern region and Bangkok - the surrounding area, according to information from the Communication Center for Solving Air Pollution Problems (IS. Wed.) Air quality monitoring report dated February 13, 2024 at 7:00 a.m. found that the northern area The amount of dust mostly exceeded the standard, measured at 26.3-75.9 micrograms/cubic meter. and Bangkok - metropolitan area, measured by measurement stations of the Pollution Control Department in collaboration with Bangkok T he amount of dust mostly exceeded the standard, measuring 46.3-77.2 micrograms/cubic meter, in both of the aforementioned areas. The air quality level is at a level that is beginning to affect health (orange) and overall it is found that The amount of dust tends to increase as well. This is because the high pressure area or cold air mass is quite strong from China covering upper Thailand. Make the northern and northeastern regions The weather is cool to cold in the central region including Bangkok and surrounding areas and the eastern region. There is cool weather in the morning. and the wind at the lower level is at a weak level. The air sinks. This characteristic causes dust particles in the air to be unable to float. Can vent through the inversion temperature layer (inversion) to the atmosphere. And there is still density during this week. Chaiya Phromma, Deputy Minister of Agriculture and Cooperatives, ordered the Department of Royal Rainmaking and Agricultural Aviation to continuously mobilize forces fo r Royal Rainmaking operations and weather modification operations, which the Department through Royal Rainmaking Operations Units in Chiang Mai, Nakhon Sawan, Rayong and Prachuap Khiri Khan provinces. Track the weather and plan your daily work. There are 3 techniques used in the mission to alleviate the problem of small dust particles: 1. Royal Rainmaking Operations in the Disturbance Stage Using Royal Rainmaking Formula 1 (Sodium Chloride) to operate in the upwind area. and surrounding dust masses in Bangkok and surrounding areas to create clouds and increase the amount of clouds in the target area. 2. Royal Rainmaking operations in the process of raising fat. Using Royal Rainmaking Formula 8 Calcium Oxide or Formula 6 Calcium Chloride. Operating in the windward area and surrounding masses of dust in the Bangkok area and the most perimeter To raise clouds to become larger and have the power to absorb dust. and 3. Implementation of inverse atmospheric temperature reduction techniques. By scattering dry ice or spraying water. To vent dust at the inversion level (inversion temperature layer) or above the inversion level (inversion temperature layer) to create a channel to vent dust into the atmosphere above. For the results of operations with the past 3 techniques During the period 3-12 February 2024, it was found that after the operation The amount of dust in the northern region, Bangkok - metropolitan area, tends to decrease. Including rain in nearby areas, including Ban Bueng District, Chonburi Province, Wang Chan District, Rayong Province, and during this week we will continue to monitor the weather conditions. If the weather conditions are suitable and meet the conditions for rainmaking operations or weather modification A rescue operation flight will be planned immediately. However, the Department has been monitoring and following up on the problem of small dust particles. Including mobilizing personnel, aircraft, and setting up an operational unit for climate modification. From the end of 2023 onwards (24 Dec. 2023) in order to alleviate the suffering of people in Bangkok - metropolitan area, northern and central regions that are starting to have an impact all over the country as well. Source: Thai News Agency